Multi-Tech Systems CDMA Wireless Modem Error Control Operation +EB, Values Breakselection, Timed

Chapter 17 – Extended AT Commands in IS707.3

Error Control Operation +EB

Description: This command is used for break handling in error control operations. The extended-format compound parameter is used to control the manner of V.42 operation on the PSTN line (if present in IWF). The command is not relevant for packet service. For more details on the command, refer to IS707.3.

Values: <Break_selection>

0: Ignore break (do not signal to remote DCE)

1: Non-expedited, non-destructive

2: Expedited, non-destructive

3: Expedited and destructive

<timed>

0: Any transmitted V.42 L-SIGNAL shall not indicate break signal length

1: Any transmitted V.42 L-SIGNAL shall indicate break signal length

<default_length>

0: Do not deliver break to DTE

1-254: Default break length of .01 to 2.54 seconds

Syntax: Command syntax: AT+EB=[<Break_selection>[,<timed>[,<default_length>]]]

Command	Possible Responses
AT+EB?	+EB: 1,0,30
Note: Display the current setting.	OK
	Note: This is the default setting
AT+EB=2	OK
Note: Set value to 2.	Note: Command is valid

Numeric Parameter Control +EFCS

Description: The extended-format numeric parameter is used to control the use of 32-bit frame check sequence option in V.42 on the PSTN link (if present in IWF). The command is not relevant for packet service.

Values:	<Val>
	0: Use 16-bit FCS
	1: Use 32-bit FCS if available in remote DCE; otherwise use 16-bit FCS
	2: Use 32-bit FCS if available in remote DCE; otherwise disconnect
Syntax:	Command syntax: AT+EFCS=[<Val>]
	Command	Possible Responses
	AT+EFCS?	+EFCS: 0
	Note: Display the current setting.	OK
		Note: Command is valid
	AT+EFCS=2	OK
	Note: Set value to 2.	Note: Command is valid

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 133